If there's a section of track that has 2 colo(u)rs, say from NY to Washington (which has orange and black), and I claimed the track through the black train cards does it mean that other players cannot claim the orange track because I claimed it first or is the orange track still up for grabs?

It was the case for the online version but not so much for the xbox 360 version and I was wondering which is the most correct ruling.